#include<stdio.h>
#include<string.h>

struct Books
{
    char title[50];
    char author[50];
    char subject[100];
    int  book_id;
};

int main()
{ 
    struct Books Book1; /* 声明Book1，类型为Books*/
    struct Books Book2; /* 声明 Book2, 类型为Books*/

    /* Book 详述*/
    strcpy( Book1.title, "C Programming");
    strcpy( Book1.author, "Nuha Ali");
    strcpy( Book1.subject, "C Programming Tutorial");
    Book1.book_id = 6495407;

    /* Book2 详述*/
    strcpy( Book2.title, "Telecom Billing");
    strcpy( Book2.author, "Azra Ali");
    strcpy( Book2.subject, "Telecom Billing Tutorial");
    Book2.book_id = 6495700;

    /* 输出 Book1 信息*/
    printf("Book 1 title : %s\n", Book1.title);
    printf( "Book 1 author : %s\n", Book1.author);
    printf( "Book 1 subjuect : %s\n", Book1.subject);
    printf( "Book 1 book_id : %d\n", Book1.book_id);

    /* 输出 Book2 信息*/
    printf( "Book 2 title : %s\n", Book2.title);
    printf( "Book 2 author : %s\n", Book2.author);
    printf( "Book 2 subject : %s\n", Book2.subject);
    printf( "Book 2 book_id: %d\n", Book2.book_id);

    return 0;

}